That is because AMD split graphics vs. compute and you look at a non-compute card. The Vega-based chips work quite well and the Radon VII is (or was, I'm afraid) an excellent value proposition.

So this is well outside my area of expertise; but that seems weird. I want AMD to shepherd the ecosystem to a point where I can run PyTorch with some support from a graphics card. Supporting some graphics cards and not others doesn't sound very promising.

It is amazing to watch how much of a struggle AMD is having with getting PyTorch to work with ROCm. It makes me appreciate what a good job Nvidia must have done with CUDA.

Nvidia has split lines too. But they understand the importance of getting developers on their platform.

(To be fair AMD has it planned, but it's behind several other priorities to them.)

Yeah... I learned this the hard way.

I thought AMD had great Linux driver support, and open source drivers.

Turns out AMD only has the open source driver part of the things, and this driver does not support a large chunk of their products.

I'd take a binary driver over no driver any day (and in fact, I returned the amd card and am using intel now, which works great).

difference between AMD and nvidia:

AMD: some open source drivers, but many things are inop

Nvidia: all closed source, but everything works

Source: I have a Vega 56 and I am gonna give it the sledgehammer when 3000 series arrives. Fuck that shit to high heavens my dude. ROCm is buggy as fuck. Only the bare basics work on Linux. Drivers are buggy, and crash all the time. Even the most basic bullshit is not implemented right. Like there is no fan control. That's how bad it is.